I don't know what's going on

My body is definitely doing something different.

I've had these symptoms: nausea, bloating, darkened nipples, lots of cm, increased sex drive, mood swings, visible veins over chest, breasts and belly, higher heart rate, higher temperature, aversion to my usual coffee, cravings for foods I don't normally eat and fatigue where I even feel drowsy while driving.

My last period was strange and early, one day that did not fill a pad then watery flow that was very light for two days. I normally bleed quite heavy for 8 days. My cramps were noticably lighter and lasted two days as opposed to a week.

I've had three days of very, very faint lines but then a negative test today. Just after I stopped bleeding I had a blood test that came back negative but I thought maybe it was too soon? That would have been maybe 6 or 7 dpo.

If I don't count that light period I am 16dpo but can't get a clear positive.

I am starting to worry about perimenopause and I'm 35 yrs old.

What's your thoughts?